DE4444819A1 - Lubricating oil pump for IC engine - Google Patents
Lubricating oil pump for IC engineInfo
- Publication number
- DE4444819A1 DE4444819A1 DE19944444819 DE4444819A DE4444819A1 DE 4444819 A1 DE4444819 A1 DE 4444819A1 DE 19944444819 DE19944444819 DE 19944444819 DE 4444819 A DE4444819 A DE 4444819A DE 4444819 A1 DE4444819 A1 DE 4444819A1
- Authority
- DE
- Germany
- Prior art keywords
- lubricating oil
- oil pump
- housing
- spring
- spring element
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C14/00—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations
- F04C14/24—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves
- F04C14/26—Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by using valves controlling pressure or flow rate, e.g. discharge valves or unloading valves using bypass channels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/16—Controlling lubricant pressure or quantity
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/20—Rotary pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N2270/00—Controlling
- F16N2270/60—Pressure
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Lubrication Of Internal Combustion Engines (AREA)
Abstract
Description
Die Erfindung betrifft eine Schmierölpumpe einer Brenn kraftmaschine, insbesondere eine Innenzahnradpumpe, mit einem im Gehäuse angeordneten Druckregelventil, das als ein von einem Federelement belasteter, einen Überström querschnitt abdeckender oder freigebender Abregelkolben ausgebildet ist. Zum Stand der Technik wird beispielshal ber auf die EP 0 315 878 A2 verwiesen, wenngleich dort das mit einem Schraubenfederelement versehene Druckregel ventil nicht im Gehäuse der Innenzahnradpumpe angeordnet ist. Gleiches gilt bezüglich der aus der GB-PS 594 787 bekannten Schmierölpumpe einer Brennkraftmaschine.The invention relates to a lubricating oil pump of a burner Engine, in particular an internal gear pump, with a pressure control valve arranged in the housing, which as an overflow loaded by a spring element regulating piston covering or releasing cross section is trained. The prior art is exemplified referred to EP 0 315 878 A2, although there the pressure rule provided with a coil spring element valve is not arranged in the housing of the internal gear pump is. The same applies to that from GB-PS 594 787 known lubricating oil pump of an internal combustion engine.
Um eine kompakte Bauweise zu erzielen, wird angestrebt, das Druckregelventil in das Gehäuse der Schmierölpumpe zu integrieren. Dabei benötigt jedoch die aus dem Stand der Technik bekannte Schraubenfeder als Federelement des Druckregelventiles einen relativ großen axialen Bauraum, da sie eine große Zahl aktiver Windungen besitzt. Maßnah men aufzuzeigen, mit Hilfe derer eine Schmierölpumpe nach dem Oberbegriff des Anspruchs 1 noch kompakter ausgebil det werden kann, ist Aufgabe der vorliegenden Erfindung.In order to achieve a compact design, the aim is the pressure control valve into the housing of the lubricating oil pump integrate. However, this requires the state of the art Technology known coil spring as a spring element of Pressure control valve has a relatively large axial installation space, because it has a large number of active turns. Measure men with the help of which a lubricating oil pump the preamble of claim 1 trained even more compact det can be the object of the present invention.
Zur Lösung dieser Aufgabe sind zusammenwirkend die im kennzeichnenden Teil des Anspruchs 1 angegebenen Merkmale vorgesehen. Vorteilhafte Aus- und Weiterbildungen sind im Unteranspruch fakultativ aufgelistet.To solve this task, the are working together characterizing part of claim 1 specified features intended. Advantageous training and further education are in Optional subclaim listed.
Näher erläutert wird die Erfindung anhand eines bevorzug ten Ausführungsbeispieles, dabei zeigt Fig. 1 einen Halb- Axialschnitt, sowie Fig. 2 den Schnitt A aus Fig. 1.The invention is explained in more detail with reference to a preferred exemplary embodiment, FIG. 1 showing a semi-axial section and FIG. 2 section A from FIG. 1.
Mit der Bezugsziffer 1 ist eine Brennkraftmaschinen-Welle bezeichnet, auf der eine als Innenzahnradpumpe ausgebil dete Schmierölpumpe 2 angeordnet ist. Die Achse 3 der Brennkraftmaschinen-Welle 1 stellt dabei gleichzeitig die Achsrichtung 3 der Schmierölpumpe 2 dar.Reference numeral 1 denotes an internal combustion engine shaft, on which a lubricating oil pump 2 configured as an internal gear pump is arranged. The axis 3 of the internal combustion engine shaft 1 simultaneously represents the axial direction 3 of the lubricating oil pump 2 .
Im einzelnen besteht die als Innenzahnradpumpe ausgebil dete Schmierölpumpe 2 wie üblich aus zwei Laufrädern 4a, 4b, die innerhalb eines zwei Gehäuseteile 5a, 5b aufwei senden Gehäuses 5 angeordnet sind und dabei wie üblich eine Saugseite 6a sowie eine Druckseite 6b definieren. Ferner ist im Gehäuse 5 ein Druckregelventil 7 vorgese hen, das als ein von einem Federelement 7a belasteter, einen Überströmquerschnitt 8 im Gehäuseteil 5a abdecken der oder freigebender Abregelkolben 7b ausgebildet ist. Befindet sich der Abregelkolben 7b in der in Fig. 1 ge zeigten Position, so ist der die Druckseite 6b mit der Saugseite 6a verbindende Überströmquerschnitt 8 ver schlossen, wird hingegen der Abregelkolben 7b in Achs richtung 3 aufgrund hohen Öl-Förderdruckes nach rechts verschoben, so wird zumindest ein Teilbereich oder auch der vollständige Überströmquerschnitt 8 freigegeben, wo durch ein Teilstrom des geförderten Schmieröles von der Druckseite 6b weggenommen wird.Specifically, the ausgebil Dete lubricating oil pump 2 as an internal gear pump, as usual, consists of two impellers 4 a, 4 b, which are arranged within a two housing parts 5 a, 5 b, housing 5 and, as usual, a suction side 6 a and a pressure side 6 b define. Furthermore, a pressure control valve 7 is provided in the housing 5 , which is designed as a spring element 7 a that covers an overflow cross section 8 in the housing part 5 a or that is designed to release or regulate the control piston 7 b. Is the shut-off piston 7 b in the ge shown in Fig. 1 position, the pressure side 6 b with the suction side 6 a connecting overflow cross-section 8 ver closed, however, the shut-off piston 7 b in the axial direction 3 due to high oil delivery pressure after shifted to the right, a portion or the complete overflow cross-section 8 is released, at least where it is removed b through a partial flow of the pumped lubricating oil from the pressure side. 6
Beim Federelement 7a handelt es sich um eine torsionsbe lastete Schenkelfeder, wobei die Achse 9 der Federwindun gen im wesentlichen rechtwinkelig zur Achsrichtung 3 der Schmierölpumpe 2 liegt. Mit dieser Gestaltung ergibt sich eine äußerst kompakte, raumsparende Bauweise, da die längs der Achse 9 verlaufenden Federwindungen des Feder elementes 7a keinen zusätzlichen Bauraum benötigen, son dern vollständig innerhalb des relativ schmalen, da le diglich die Laufräder 4a, 4b einschließenden Gehäuses 5 liegen können.The spring element 7 a is a torsion-loaded leg spring, the axis 9 of the Federwindun gene is substantially perpendicular to the axial direction 3 of the lubricating oil pump 2 . This design results in an extremely compact, space-saving design, since the spring windings running along the axis 9 of the spring element 7 a do not require any additional installation space, but are completely within the relatively narrow, since le diglich the impellers 4 a, 4 b enclosing housing 5 can lie.
Im Detail ist das als Schenkelfeder ausgebildete Feder element 7a in einer hinsichtlich seiner Abmessungen ange paßten Aussparung 10 im Gehäuseteil 5a gelagert, wobei diese Aussparung 10 vom anderen Gehäuseteil 5b abgedich tet wird und wobei sich die Schenkelfeder mit ihrem ersten Schenkel 11a am Gehäuseteil 5a mit ihrem zweiten Schenkel 11b am Abregelkolben 7b abstützt. Wie ersicht lich ist dieser Abregelkolben 7b dabei in einer kreisför migen Aussparung 12 des Gehäuseteiles 5a geführt und liegt in der den Überströmquerschnitt 8 abdeckenden Posi tion an den Laufrädern 4a, 4b der Schmierölpumpe 2 an. Mit all diesen Merkmalen erhält man eine äußerst kompakt und einfach bauende und gleichzeitig insbesondere auf grund der geringen Teilezahl funktional zuverlässige Schmierölpumpe, insbesondere Innenzahnradpumpe einer Brennkraftmaschine.In detail, the spring element designed as a leg spring 7 a is mounted in a recess 10 with regard to its dimensions in the housing part 5 a, this recess 10 being sealed from the other housing part 5 b and the leg spring with its first leg 11 a Housing part 5 a is supported with its second leg 11 b on the regulating piston 7 b. As can be seen, this regulating piston 7 b is guided in a circular recess 12 of the housing part 5 a and lies in the position covering the overflow cross section 8 on the impellers 4 a, 4 b of the lubricating oil pump 2 . With all of these features, one obtains an extremely compact and simple-to-build lubricating oil pump, which at the same time is functionally reliable, in particular due to the small number of parts, in particular an internal gear pump of an internal combustion engine.
Claims (2)
- - der Abregelkolben (7b) ist in Achsrichtung (3) der Schmierölpumpe (2) verschiebbar
- - das Federelement (7a) ist eine torsionsbelastete Schenkelfeder
- - die Achse (9) der Federwindungen liegt im wesentli chen rechtwinkelig zur Achsrichtung (3) der Schmierölpumpe (2)
- - die Schenkelfeder (Federelement 7a) stützt sich mit ihren beiden Schenkeln (11a, 11b) einerseits am Ge häuse (5) und andererseits am Abregelkolben (7b) ab.
- - The regulating piston ( 7 b) is displaceable in the axial direction ( 3 ) of the lubricating oil pump ( 2 )
- - The spring element ( 7 a) is a torsion spring leg
- - The axis ( 9 ) of the spring windings lies in wesentli chen perpendicular to the axial direction ( 3 ) of the lubricating oil pump ( 2 )
- - The leg spring (spring element 7 a) is supported with its two legs ( 11 a, 11 b) on the one hand on the Ge housing ( 5 ) and on the other hand on the regulating piston ( 7 b).
- - der Abregelkolben (7b) ist in einer kreisförmigen Aussparung (12) des einen Gehäuseteiles (5a) geführt
- - in der den im Gehäuse (5) vorgesehenen Überström querschnitt (8) abdeckenden Position liegt der Abre gelkolben (7b) an den Laufrädern (4a, 4b) der Schmierölpumpe (2) an
- - die Schenkelfeder (Federelement 7a) ist in einer hinsichtlich der Abmessungen angepaßten Aussparung (10) in einem Gehäuseteil (5a) gelagert, die vom an deren Gehäuseteil (5b) abgedeckt wird.
- - The regulating piston ( 7 b) is guided in a circular recess ( 12 ) of one housing part ( 5 a)
- - In the in the housing ( 5 ) provided overflow cross-section ( 8 ) covering position Abre gelkolben ( 7 b) on the impellers ( 4 a, 4 b) of the lubricating oil pump ( 2 )
- - The leg spring (spring element 7 a) is mounted in a recess ( 10 ) which is adapted to the dimensions in a housing part ( 5 a) which is covered by the other housing part ( 5 b).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19944444819 DE4444819A1 (en) | 1994-12-15 | 1994-12-15 | Lubricating oil pump for IC engine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19944444819 DE4444819A1 (en) | 1994-12-15 | 1994-12-15 | Lubricating oil pump for IC engine |
Publications (1)
Publication Number | Publication Date |
---|---|
DE4444819A1 true DE4444819A1 (en) | 1996-06-20 |
Family
ID=6535959
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE19944444819 Withdrawn DE4444819A1 (en) | 1994-12-15 | 1994-12-15 | Lubricating oil pump for IC engine |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE4444819A1 (en) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19646359A1 (en) * | 1996-11-09 | 1998-05-14 | Josef Bachmann | Lubricating oil pump controlled by volumetric degree of effect |
EP0822334A3 (en) * | 1996-08-02 | 1998-11-25 | Neudecker & Jolitz GmbH & Co. | Gear pump |
WO2003044370A1 (en) * | 2001-11-20 | 2003-05-30 | Lg Electronics Inc. | Vane supporting apparatus for hermetic compressor |
WO2003058071A1 (en) * | 2002-01-12 | 2003-07-17 | Dieter Voigt | Device for pressure regulation of hydraulic pumps |
US7674095B2 (en) | 2000-12-12 | 2010-03-09 | Borgwarner Inc. | Variable displacement vane pump with variable target regulator |
US7726948B2 (en) | 2002-04-03 | 2010-06-01 | Slw Automotive Inc. | Hydraulic pump with variable flow and variable pressure and electric control |
Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2268806A (en) * | 1939-07-13 | 1942-01-06 | Curtis Pump Co | By-pass valve for aircraft fuel pumps |
US3102488A (en) * | 1960-12-12 | 1963-09-03 | Thompson Ramo Wooldridge Inc | Pressure control device |
DE1241191B (en) * | 1964-01-31 | 1967-05-24 | Volkswagenwerk Ag | Arrangement of the pressure relief valve of a gear pump |
FR2393956A2 (en) * | 1977-06-07 | 1979-01-05 | Hydro Meca | Gear pump for power assisted steering system - has delivery valve with sprung piston to control volume of oil flow |
DE3333647C2 (en) * | 1982-09-21 | 1986-10-30 | Glyco-Antriebstechnik Gmbh, 6200 Wiesbaden | Lubricant pump for generating pressure in an internal combustion engine lubricated by pressure circulation |
EP0301886A2 (en) * | 1987-07-29 | 1989-02-01 | HYDRECO, INC. (a Delaware corporation) | Variable discharge gear pump with energy recovery |
US4971528A (en) * | 1989-03-06 | 1990-11-20 | Stanadyne Automotive Corp. | Lube oil pump with relief valve |
EP0517014A1 (en) * | 1991-06-07 | 1992-12-09 | Schwäbische Hüttenwerke Gesellschaft mit beschränkter Haftung | Lubrication gear pump for internal combustion engines, especially for vehicles |
DE4219538A1 (en) * | 1991-06-28 | 1993-01-07 | Volkswagen Ag | IC engine oil pump - design allows for drive to be taken from crankshaft, gear or chain wheel |
DE4302610A1 (en) * | 1993-01-30 | 1994-08-04 | Glyco Metall Werke | Process for regulating the pump output of lubricant pumps and lubricant pump therefor |
-
1994
- 1994-12-15 DE DE19944444819 patent/DE4444819A1/en not_active Withdrawn
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2268806A (en) * | 1939-07-13 | 1942-01-06 | Curtis Pump Co | By-pass valve for aircraft fuel pumps |
US3102488A (en) * | 1960-12-12 | 1963-09-03 | Thompson Ramo Wooldridge Inc | Pressure control device |
DE1241191B (en) * | 1964-01-31 | 1967-05-24 | Volkswagenwerk Ag | Arrangement of the pressure relief valve of a gear pump |
FR2393956A2 (en) * | 1977-06-07 | 1979-01-05 | Hydro Meca | Gear pump for power assisted steering system - has delivery valve with sprung piston to control volume of oil flow |
DE3333647C2 (en) * | 1982-09-21 | 1986-10-30 | Glyco-Antriebstechnik Gmbh, 6200 Wiesbaden | Lubricant pump for generating pressure in an internal combustion engine lubricated by pressure circulation |
EP0301886A2 (en) * | 1987-07-29 | 1989-02-01 | HYDRECO, INC. (a Delaware corporation) | Variable discharge gear pump with energy recovery |
US4971528A (en) * | 1989-03-06 | 1990-11-20 | Stanadyne Automotive Corp. | Lube oil pump with relief valve |
EP0517014A1 (en) * | 1991-06-07 | 1992-12-09 | Schwäbische Hüttenwerke Gesellschaft mit beschränkter Haftung | Lubrication gear pump for internal combustion engines, especially for vehicles |
DE4219538A1 (en) * | 1991-06-28 | 1993-01-07 | Volkswagen Ag | IC engine oil pump - design allows for drive to be taken from crankshaft, gear or chain wheel |
DE4302610A1 (en) * | 1993-01-30 | 1994-08-04 | Glyco Metall Werke | Process for regulating the pump output of lubricant pumps and lubricant pump therefor |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0822334A3 (en) * | 1996-08-02 | 1998-11-25 | Neudecker & Jolitz GmbH & Co. | Gear pump |
DE19646359A1 (en) * | 1996-11-09 | 1998-05-14 | Josef Bachmann | Lubricating oil pump controlled by volumetric degree of effect |
DE19646359C2 (en) * | 1996-11-09 | 2001-12-06 | Gkn Sinter Metals Gmbh | Oil pump with a gear rotor set |
US7674095B2 (en) | 2000-12-12 | 2010-03-09 | Borgwarner Inc. | Variable displacement vane pump with variable target regulator |
WO2003044370A1 (en) * | 2001-11-20 | 2003-05-30 | Lg Electronics Inc. | Vane supporting apparatus for hermetic compressor |
WO2003058071A1 (en) * | 2002-01-12 | 2003-07-17 | Dieter Voigt | Device for pressure regulation of hydraulic pumps |
US7726948B2 (en) | 2002-04-03 | 2010-06-01 | Slw Automotive Inc. | Hydraulic pump with variable flow and variable pressure and electric control |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OM8 | Search report available as to paragraph 43 lit. 1 sentence 1 patent law | ||
8139 | Disposal/non-payment of the annual fee |